Title
Predicting the future carbon budget of an upland peat catchment
Description
Using data from a single upland peat catchment (North Pennines, UK), this study combines descriptions of the uptake of carbon by primary productivity and input from both wet and dry deposition with descriptions of carbon release pathways: soil CO2 respiration, CH4 flux, particulate organic carbon (POC), dissolved organic carbon (DOC), and excess dissolved CO2. Each pathway is projected 10 years into the future based upon extrapolated changes in rainfall and temperature. The study shows that the catchment is presently a net source of carbon and that over a period of 10 years the catchment goes from a net source of 11.2 to 20.9 gC/m 2/year. The probability that the catchment is a net sink of carbon decreases from 35 to 26% over the study period, i.e. upland peats are predicted to become an increasing source of carbon. With respect to carbon gases (CO2 + CH4), the catchment remains a net sink but this decreases from 15.9 to 11.2 gC/m 2/year, given current trends the catchment will become a net source of carbon gases by 2034. For most pathways the predicted increases or decreases are in line with increasing temperature predicted for the area, but DOC flux shows a larger percentage increase because of additional production caused by the increased frequency of severe droughts within the catchment. If this result is extended across the UK uplands, peats would be a net source of between 0.26 and 0.45 Mt C/year, but with respect to carbon gases alone the catchment is net sink of between 0.35 and 0.23 Mt C/year.
URL
http://dx.doi.org/10.1007/s10584-007-9300-1
URL Description
Abstract
Language
English
Author
Fred Worrall
Author
Martin Evans
Author
Tim Burt
Author
Alona Armstrong
Author
John Adamson
Author
Jeff Warburton
Author
Mark Reed

carbon budget; uplands

Volume number
85
Issue number
01 February 2017
Is this item peer reviewed?
Yes
ISSN
0165-0009
Copyright URL
http://www.springer.com/open+access/open+choice?SGWID=0-40359-0-0-0
Publisher
Springer-Verlag
Date of publication
01 January 2007
Number of pages
10
Page reference
139-158
Place of publication
Dordrecht, The Netherlands
Is this item a pre-print or post-print?
Postprint
Title of journal
Climatic change
Harvard
Worrall, Fred et al (2007) Predicting the future carbon budget of an upland peat catchment. Climatic change. 85 (1-2), pp. 139-158 Dordrecht, The Netherlands: Springer-Verlag.
Vancouver
Worrall Fred et al. Predicting the future carbon budget of an upland peat catchment. Climatic change 2007; 85 (1-2): 139-158.